Test Power Supply Resistance - Graco WB3000 Instructions - Parts Manual

Test Power Supply Resistance

1. Remove the power supply (11). See
Supply Removal and Replacement, page
2. Remove the alternator (15)
from the power supply. See
Alternator Removal and Replacement, page
3. Measure resistance from the power supply's
ground strips (EE) to the spring (11a). The
resistance should be 90–115 megohms. If outside
this range, replace the power supply. If in range,
go to Test Gun Barrel Resistance, page
4. Be sure the spring (11a) is in place before
reinstalling the power supply.
3A2497C
Power
52.
53.
38.
Figure 18 Test Power Supply Resistance
Electrical Tests
37